IES DG-26-16 PDF Download

IES DG-26-16 is a Design Guide that provides guidance on lighting the roadway in work zones. Its main purpose is to ensure visibility for road users transiting through or adjacent to the work area. The guide references NCHRP Report 498 for criteria on determining lighting requirements for work within the work area, but also takes into consideration the impact of glare produced by the lighting on driver requirements.

The document emphasizes the importance of incorporating the stipulations and guidance provided in the guide into any statement of work for nighttime road work, ensuring that the contractor is aware of and follows the recommended lighting practices. Additionally, the guide emphasizes the need for adjustments to be made to the work area lighting if any problems are identified after installation, or if directed to do so by the infrastructure owner.